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1. 发明授权

US5057160A Apparatus for passively releasing gases from a vessel against an adverse pressure gradient 失效
标题翻译：用于被动地从容器释放气体抵抗不利的压力梯度的装置
公开(公告)号：US5057160A
公开(公告)日：1991-10-15
申请号：US401730
申请日：1989-08-31
申请人： William J. Ward, III , Philip G. Kosky , John A. Kamal
发明人： William J. Ward, III , Philip G. Kosky , John A. Kamal
IPC分类号： B01J4/04 , G21C3/17
CPC分类号： G21C3/17 , B01J4/04 , Y02E30/40
摘要： A microporous plug is provided which serves to seal a vessel so as to prevent the bulk flow of gases through an outlet. The pores of said microporous plug are sized so as to permit the transport of gases to and from the vessel interior by Knudsen diffusion. In preferred embodiments, the pores of the plug are sized so as to release helium from the interior of a vessel and restrict the transport of carbon dioxide into the vessel from the surrounding atmosphere by Knudsen diffusion. Such embodiments are particularly useful on Mars where the helium is transported into an environment of higher pressure. In other embodiments, the microporous plug is used in conjunction with an absorber positioned within the vessel to react with atmospheric gases that pass through the plug, such as carbon dioxide. Also provided are radioisotope thermoelectric generators that incorporate a microporous plug and optionally an absorber.
摘要翻译：提供了一种微孔塞，其用于密封容器，以防止气体通过出口的大量流动。所述微孔塞的孔隙的大小被设计成允许通过克努森扩散将气体输送到船舶内部。在优选的实施方案中，塞子的孔的尺寸被设计成从容器的内部释放氦，并且通过克努森（Knudsen）扩散来限制二氧化碳从周围的气氛输送到容器中。这样的实施例在将氦输送到更高压力的环境中的火星上特别有用。在其它实施例中，微孔塞与吸收器结合使用，该吸收器位于容器内以与通过塞子的大气气体（例如二氧化碳）反应。还提供了包含微孔塞和任选的吸收体的放射性同位素热电发生器。

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